Around 1100, Abelard's travels brought him to Paris. Around this time he changed his surname to Abelard, sometimes written Abailard or Abaelardus. The etymological root of Abelard could be the Middle French abilite ('ability'), the Hebrew name Abel/Habal (breath/vanity/figure in Genesis), the English apple or the Latin ballare ('to dance'). The name is jokingly referenced as relating to lard, as in excessive ("fatty") learning, in a secondary anecdote referencing Adelard of Bath and Peter Abelard (and in which they are confused to be one person).[11]
In the great cathedral school of Notre-Dame de Paris (before the construction of the current cathedral there), he studied under Paris archdeacon and Notre-Dame master William of Champeaux, later bishop of Chalons, a disciple of Anselm of Laon (not to be confused with Saint Anselm), a leading proponent of philosophical realism.[10] Retrospectively, Abelard portrays William as having turned from approval to hostility when Abelard proved soon able to defeat his master in argument. This resulted in a long duel that eventually ended in the downfall of the theory of realism which was replaced by Abelard's theory of conceptualism / nominalism. While Abelard's thought was closer to William's thought than this account might suggest,[12] William thought Abelard was too arrogant.[13] It was during this time that Abelard would provoke quarrels with both William and Roscellinus.[8]
Against opposition from the metropolitan teacher, Abelard set up his own school, first at Melun, a favoured royal residence, then, around 1102–04, for more direct competition, he moved to Corbeil, nearer Paris.[9] His teaching was notably successful, but the stress taxed his constitution, leading to a nervous breakdown and a trip home to Brittany for several years of recovery.
On his return, after 1108, he found William lecturing at the hermitage of Saint-Victor, just outside the Île de la Cité, and there they once again became rivals, with Abelard challenging William over his theory of universals. Abelard was once more victorious, and Abelard was almost able to attain the position of master at Notre Dame. For a short time, however, William was able to prevent Abelard from lecturing in Paris. Abelard accordingly was forced to resume his school at Melun, which he was then able to move, from c. 1110–12, to Paris itself, on the heights of Montagne Sainte-Geneviève, overlooking Notre-Dame.[14]
From his success in dialectic, he next turned to theology and in 1113 moved to Laon to attend the lectures of Anselm on Biblical exegesis and Christian doctrine.[8] Unimpressed by Anselm's teaching, Abelard began to offer his own lectures on the book of Ezekiel. Anselm forbade him to continue this teaching. Abelard returned to Paris where, in around 1115, he became master of the cathedral school of Notre-Dame and a canon of Sens (the cathedral of the archdiocese to which Paris belonged).[9]
